大型民用飞机起落架应急断离分析与仿真  

Analysis and simulation of emergency breakaway for large civil aircraft landing gear

作　　者：杜瑞[1] 许锋[1] 

机构地区：[1]南京航空航天大学飞行器先进设计技术国防重点学科实验室,江苏南京210016

出　　处：《机械设计与制造工程》2014年第12期38-42,共5页Machine Design and Manufacturing Engineering

基　　金：江苏高校优势学科建设工程资助项目

摘　　要：起落架应急断离设计是民用飞机设计中必须考虑的问题。根据适航相关规定,论述了起落架应急断离设计的结构设计要求。基于LMS Virtual.Lab Motion多体动力学仿真平台,建立了某型民用飞机主起落架的动力学仿真模型。完成主起落架自由落震、地面滑跑过障碍物等情况的仿真计算,并着重对仿真过程中各断离点载荷进行分析,确定了相应的断离载荷和断离序列,实现了大型民用飞机起落架应急断离动力学特性的分析与仿真。It is necessary key item for civil aircraft design to focus on the emergency breakaway design of landing gear. According to the airworthiness regulations, it analyzes the structural requirements of the landing gear emergency breakaway design. Based on multi - body dynamical simulating plate of LMS Virtual Lab Motion, it establishes the dynamical model of an civil aircraft main landing gear, simulates the main landing gear model of free drop and taxiing obstacles, analyzes the disconnection point load, concludes the breakaway loads and the failure sequence. These results lead to the dynamical analysis and simulation of emergency breakaway for large civil aircraft landing gear.

关 键 词：民用飞机 起落架 应急断离 LMS VIRTUAL.LAB Motion 动力学仿真 断离序列 

分 类 号：V226[航空宇航科学与技术—飞行器设计]